A group of organisms that share most characteristics and can interbreed to produce fertile offspring

A group of organisms thought to have evolved from a common ancestor.

The largest group in the modern biological classification system.

The next level of classification under domain.

An organism that lacks a membrane-bound nucleus and organelles.

Three domains

Grouping organisms in a way that helps us organize and understand diversity in organisms

Classification system in which each species is assigned a two-part scientific name

An organism whose cells contain a nucleus and other membrane-bound organelles

Group of closely related classes

Group of similar families

Group of similar orders

Organism that can capture energy from sunlight or chemicals and use it to produce its own food

Group of genus that share many characteristics

Group of closely related species,first part of the scientific name in binomial nomenclature

Organism that obtains energy from the food it consumes

Theory that eukaryotic cells formed from a symbiosis among several different prokaryotic organisms

A branching diagram that shows the relationships among organisms or groups of organisms

The evolutionary history of a species.

The process of evolutionary separation.

Traits shared by members of a clade but not by ancestors of the clades